Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow (diffusion pumps F04F9/00; combination of jet pumps with pumps of other than jet type F04B; use of jet pumps for priming or boosting non-positive-displacement pumps F04D)

Filing statistics

CPC F04F 5/00 belongs to the parent subclass F04F, which recorded 8,291 patent applications worldwide between 2013 and 2023. Annual filings declined from 836 in 2013 to 549 in 2023 (-34%). The most active applicants in class F04 are LG ELECTRONICS (3,855 applications), ROBERT BOSCH (3,549 applications) and GREE ELECTRIC APPLIANCES (2,273 applications).

Source: EPO PATSTAT, worldwide filings

5 direct subcodes

Child Classifications

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F04F 5/02 the inducing fluid being liquid
F04F 5/14 the inducing fluid being elastic fluid
F04F 5/42 characterised by the input flow of inducing fluid medium being radial or tangential to output flow (cyclones B04C)
F04F 5/44 Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
F04F 5/54 Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type

Top Applicants

Top 10 applicants by patent filingsfor class F04, 2013–2023, worldwide · Source: EPO PATSTAT

LG ELECTRONICS KR 3,855
ROBERT BOSCH DE 3,549
GREE ELECTRIC APPLIANCES 2,273
GE (GENERAL ELECTRIC COMPANY) US 2,126
MITSUBISHI ELECTRIC CORPORATION JP 1,881
UNITED TECHNOLOGIES CORPORATION (UTC) US 1,866
SAFRAN AIRCRAFT ENGINES FR 1,499
MITSUBISHI HEAVY INDUSTRIES JP 1,258
TOYOTA INDUSTRIES CORPORATION JP 1,247
ATLAS COPCO AIRPOWER BE 1,168